Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-03-13
2000-05-16
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
Specific condition
340679, 219109, 219110, G08B 2100
Patent
active
060643145
ABSTRACT:
An inspection system for a welding apparatus for performing welding by supplying electric power outputted by an inverter based on a command from a welding control unit, through a welding transformer to a welding gun. The inspection system includes a first input/output section for receiving positive and negative components of a waveform outputted by the inverter and for outputting waveforms, a second input/output section for receiving waveforms outputted by the welding control unit and for outputting waveforms similar to those outputted by the inverter. A selector selects the operation of either the first or second input/output sections. A first OR circuit has applied thereto the first waveforms outputted by the first and second input/output sections, and a second OR circuit has applied thereto the second waveforms outputted by the first and second input/output sections. A third OR circuit has the outputs of the first and second OR circuits applied to the inputs thereof. A comparator compares the number of waveforms outputted from the third OR circuit with a predetermined value within a predetermined time. If the number of the waveforms outputted is equal to or larger than the predetermined value, it can be determined that the welding control unit or the inverter is operating normally. If the number of the waveforms outputted is smaller than the predetermined value, it can be determined that the welding control unit or the inverter is operating abnormally.
REFERENCES:
patent: 5424506 (1995-06-01), Drake
Hofsass Jeffery A.
Honda Giken Kogyo Kabushiki Kaisha
Previl Daniel
LandOfFree
Inspecting system for welding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inspecting system for welding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inspecting system for welding apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-262094